net: caif: remove unused structs

'cfpktq' has been unused since
commit 73d6ac63 ("caif: code cleanup").

'caif_packet_funcs' is declared but never defined.

Remove both of them.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/caif/caif_layer.h

@@ -11,9 +11,7 @@
 
 struct cflayer;
 struct cfpkt;
-struct cfpktq;
 struct caif_payload_info;
-struct caif_packet_funcs;
 
 #define CAIF_LAYER_NAME_SZ 16
 

net/caif/cfpkt_skbuff.c

@@ -21,13 +21,6 @@ do {					   \
 	pr_warn(errmsg);		   \
 } while (0)
 
-struct cfpktq {
-	struct sk_buff_head head;
-	atomic_t count;
-	/* Lock protects count updates */
-	spinlock_t lock;
-};
-
 /*
  * net/caif/ is generic and does not
  * understand SKB, so we do this typecast